Question

A rectangular paper of width $14$ cm is rolled along with its width and a cylinder of radius $20$ cm is formed. Find the volume of the cylinder.

Answer 1

A rectangular paper of width 14 c is rolled along its width to form a cylinder.

Height of cylinder = h= 14 cm= width of rectangular paper.

And

Radius of cylinder = r= 20 cm.

Volume of the cylinder = $\pi r^{2}h$

$=\frac{22}{7}\times 20\times 20\times 14$

$=17600c{m}^3$

$\therefore$ Volume of the cylinder = $17600c{m}^2$